Limekiln



J. NEWKIRK.

. Lime Kiln.

Patented Dec. 1, 1 857.

JACOB NEWKIRK, OF FACTORYVILLE, NEW YORK.

LIMEKILN.

Specification of Letters Patent No. 183764, dated December 1, 1857.

To all w/Lom tt may conccr'n:

Be it known that I, JAooB NEWKIRK, of

Factoryville, in the county of Tioga and State of New York, have invented certain new and useful Improvements in Limekilns;

and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, in which- Figure 1 represents a perspective view of the kiln complete. Fig. 2 represents a perspective view of a section through the kiln,

the boilers being entirely removed.

Similar letters of reference where they occur in the separate figures, denote like parts of the kiln in both.

The nature of my invention relates to the peculiar manner of carrying up of the flame and heat into the arch and thence by cross flues into the kiln or stack.

To enable others skilled in the art to make and use my invention, I will proceed to describe the same with reference to the drawings.

A, represents the exterior of the stack or kiln, which may be built in the usual well known manner.

B, Fig. 2, represents the interior of the kiln. The kiln at its base, in the interior, is divided into two compartments, by the wedge shaped arch C as I term it, which contracts the area of the inside of the kiln at the base very considerably, holding the limestone not sufiiciently burned, just where the fire is most intense, and directing it toward two draw holes or openings, at the Sides or back of the kiln as may be preferred.

D, represents the fire chamber, located in the center of the base of the arch C. It is furnished with a grate a, which may be in sections and removable, so as to be replaced by new ones when the old ones are burned out, without stopping the fires. Underneath the fire chamber is the ash pit E.

From the fire chamber direct there are a series of flues c, c leading into the divided parts B' B', of the kiln. These flues are deeper next the kiln than neXt the fire chamber, for the purpose of directing the flame and heat downward, or toward that part of the limestone lying immediately on the grates or bars b, b. These gra-te bars b, are not always necessary, for at times the kiln will burn with such regularity that there is no necesst-y of stoppng the regular dropping down of the lime. But there are periods when these grates, or the introduction of bars, are actually necessary, and to suit both emergencies the grate, or bars are made sectional, and easy removable as circumstances may require. Through the crown of the fire chamber another fire flue e leads up "into the arch C, and from this flue e, there leads a series of cross fiues i into the apartments B B'. The object of carrying this second set of fire fiues up into the arch is twofold, first, to bring portions of the heat higher up into the limestone, which insures more equable burning, and secondly to heat up the arch itself to prevent anything like a chill or slack heat around it.

The grates or bars Z), as above stated, are sometimes dispensed with, and to easily insert or withdraw them, openings n, n are made through walls of the kiln. Underneath these grates, or the point at which they are placed, are inclined planes E, E, onto which the burned lime falls, and by which it is directed to the draw holes F, F, at the exterior of the kiln. These planes and draw holes are represented at the sides of the kiln or the fire chamber. They may be inclined toward the back of the kiln, and when the kiln stands on a level surface, I so contemplate placing them. Then the kiln is set into a bank then the side delivery may be the most convenient, but in bot-h cases I use the planes for directing the lime to the exterior of the kiln Without the trouble of drawing it out by hand.

The limestone, and fuel, are fed in at m, m, Fig. 1, and slides G, G, are made to cover these openings when requisite.

H, H, H, are steam boilers, encased by outer walls or shells I, I, I, and so located, and controlled by slides or cut-offs o, 0,0, &c., as that they may receive heat from the kiln under and around them, each having its special fiue J, J. Or when the kiln is not fired, and steam is desired for working the engine for hoisting the charge or for other purposes, each or either of said boilers may be heated up by its own individual fire place 7s (one only being seen) are hinged doors for enlarging the feed openings m. And when the boilers are not required, and the flues leading under and around them are closed, then the waste heat, gas, &c., escapes through fm.

K, is a frame of wood or iron, externally placed around the stack or kiln for Strengthening it against the action of the internal heat.

The kiln may be furnished With the usual peep holes, or openings through the Walls, for stirring up the mass Within to prevent it from clogging or choking; and the arch O, is made to project over the fire flues c, i, to prevent them from being choked, as seen at u, u, &c.

The placing of the boiler over the top of the kiln, together With the slides G, regulates and confines the heat Within the kiln. It also makes a better draft through the kiln upon the same principle that a stove Will draW better When it has a contracted exit flue than if the whole top of the fire Chamber Were open.

Having thus fully described the nature J ACOB NEWKIRK.

Witnesses:

A. B. S'roUGH'roN, TI-Ios. H. UPPERMAN. 

